[QUOTE=Michael]I'm curious about the ultimate outcome on this as I'm having the same problem
and although I'm using RS232 right now (at only 1200 baud)....the goal is to use RS485, which is how my hardwired boards are set up.QUOTE]


Have you implemented few bytes of preamble and also Manchester encoding to your software?

The first is absolutely necessary to stabilize the data slicer at the receiver end. The second mainly depends on the modules. Does not hurt if you can tolerate speed (you actually send 2 bytes for 1 data).

Ioannis